Lower(ish) sleep needs for ever?

My baby is almost 7 months old, and her sleep needs have now dropped to 12.5 hours / or 11.5 hours awake.

She sleeps through the night and everything is well, she's sleep trained and I pay attention to her schedule.

But I can't help but being slightly envious of parents with babies who sleep more - one more hour of entertaining her is a lot at that age, even if I love spending time with her!

So - people with older babies: did your baby's sleep needs continuously go down? or did they somewhat stabilise? Give me hope (or manage my expectations!)